Toward an experimental proof of superhydrophobicity enhanced by quantum fluctuations freezing on a broadband-absorber metamaterial

Previous theoretical works suggested that superhydrophobicity could be enhanced through partial inhibition of the quantum vacuum modes at the surface of a broadband-absorber metamaterial which acts in the extreme ultraviolet frequency domain. This effect would then compete with the classical Cassie-Baxter interpretation of superhydrophobicity. In this article, we first theoretically establish the expected phenomenological features related to such a kind of "quantum" superhydrophobicity. Then, relying on this theoretical framework, we experimentally study patterned silicon surfaces on which organosilane molecules were grafted, all the coated surfaces having similar characteristic pattern sizes but different profiles. Some of these surfaces can indeed freeze quantum photon modes while others cannot. While the latter ones allow hydrophobicity, only the former ones allow for superhydrophobicity. We believe these results lay the groundwork for further complete assessment of superhydrophobicity induced by quantum fluctuations freezing.Comment: 10 pages, 5 figures, final version, accepted for publication in Journal of Applied Physic

Spatially Explicit Data: Stewardship and Ethical Challenges in Science

Scholarly communication is at an unprecedented turning point created in part by the increasing saliency of data stewardship and data sharing. Formal data management plans represent a new emphasis in research, enabling access to data at higher volumes and more quickly, and the potential for replication and augmentation of existing research. Data sharing has recently transformed the practice, scope, content, and applicability of research in several disciplines, in particular in relation to spatially specific data. This lends exciting potentiality, but the most effective ways in which to implement such changes, particularly for disciplines involving human subjects and other sensitive information, demand consideration. Data management plans, stewardship, and sharing, impart distinctive technical, sociological, and ethical challenges that remain to be adequately identified and remedied. Here, we consider these and propose potential solutions for their amelioration

Untangling knowledge creation and knowledge integration in enterprise wikis

A central challenge organizations face is how to build, store, and maintain knowledge over time. Enterprise wikis are community-based knowledge systems situated in an organizational context. These systems have the potential to play an important role in managing knowledge within organizations, but the motivating factors that drive individuals to contribute their knowledge to these systems is not very well understood. We theorize that enterprise wiki initiatives require two separate and distinct types of knowledge-sharing behaviors to succeed: knowledge creation (KC) and knowledge integration (KI). We examine a Wiki initiative at a major German bank to untangle the motivating factors behind KC and KI. Our results suggest KC and KI are indeed two distinct behaviors, reconcile inconsistent findings from past studies on the role of motivational factors for knowledge sharing to establish shared electronic knowledge resources in organizations, and identify factors that can be leveraged to tilt behaviors in favor of KC or KI

Editorial : Archaeology and information research

The aim of this special issue is to highlight the interdisciplinary nexus in a series of papers that explore and investigate the intersections of archaeologies and the different areas of information research. The archaeologies both in this special issue and more broadly can be envisioned to include archaeology proper, media archaeology, the archaeology of knowledge and other archaeological approaches, whereas information research includes, library, museum and archival studies, as well as other relevant disciplines

Editorial : Archaeology and information research

The aim of this special issue is to highlight the interdisciplinary nexus in a series of papers that explore and investigate the intersections of archaeologies and the different areas of information research. The archaeologies both in this special issue and more broadly can be envisioned to include archaeology proper, media archaeology, the archaeology of knowledge and other archaeological approaches, whereas information research includes, library, museum and archival studies, as well as other relevant disciplines

Archaeological perspectives in information science

Copyright © 2017 by Association for Information Science and Technology Archaeology is a domain that has intersections with information science and technology research both as an empirical domain of investigation and as a perspective to inquire into how people interact with information. The aim of this panel is to highlight this interdisciplinary nexus of diverse engagements and to explicate how archaeology has informed and could inform information science research and practice in the future, and how empirical information science research on archaeological practices has enhanced our understanding of both archaeological work and human information behavior and practices in general